Molder&#39;s flask.



No.' 842,700. PATENTED JAN. 29, 1907.

G. H. RAYBURN. MoLDERs PLASK.

APPLICATION FILED AUG. 1l. 1900.

2 SHEETS-SHEET 1.

W/ TNE SSE S A TTORNE YS PATENTBD JAN. 29, 1907.

G. H. RAYBURN. MOLDERS FLASK.

K APPLIOATION FILED .100.11.1900.

z SHEETS-SHEET 2l NM y @j /NVENTOH guy 172( gag/uffa Mf/TNESSES ATTORNEYS UNITED STATES PATENT oEEIoE.

GUY H. RAYBURN, OF COLUMBUS, OHIO, ASSIGNOR OF ONE-HALF TO STRAFFORD R. HEWITT, OF COLUMBUS, OHIO.

MOLDERS FLASK.

Specification of Letters Patent.

v Patented an. 29, 1907.

Application filed August .11. 1906,l Serial o. 330.211.

-proved Molders Flask, of which the followmg is a full, clear, and exact description;

Thishinvention -is an im roved molders flask, having among other o jects to provide a device of this character in which the impression in the sand of the desired article to be cast may be expeditiously and perfectly formed.

With this in view the invention consists of a cope and a drag capable of being opened laterally, combined with` a pattern-board adapted to form a partition therebetween, the whole being provided with effective means for holding them in perfect register or for holding the cope and drag in register only.

Reference is to be had to the accompanying drawings, forming a part of this speciiication, in whichlsimilar characters of reference indicate corresponding parts in all the iigure's.

Figure 1 -is a perspective view of the flask;

complete. Fig.-2 is a rear side elevation of the same. Fig. 3 isja transverse central vertical section. Fig. 4 is a plan view of the cope, the same being shown laterally opened and Fig, 5 is a transverse section through the pattern-board.

Referring to the drawing figures, the numeral 1 indicates a rectangular frameforming the drag for the ask. At opposite diagonal corners of -the frame ribbed cornerplates 2, are provided, reinforcing and strengthening the drag at these points. A hinge 3 is secured at a third corner of the drag, adapting it tobe laterally 'separated when desired to removethe sand therefrom. For securely holding the hinged portions' of the drag together when lsame is in use is provided at the corner diagonally opposite a clamp comprising a plate 4, having a hooked end, anda plate 5, having an enlarged rounded en d adapted to be engaged by the hook and lheld engagement therewith by a lever 6-,

pivoted in a bifurcation of the plate 5 and having (projections 7` extending at its sides,

designe to passaround the hooked end of the plateA 4, as clearly shown in Fig. 1.

A t each end of thc drag is secured a washer 8, provided with a projecting stud 9, on 1 which is journaled a guide-bar 10, havin projecting from its inner face a lug 11, seate 1n arecess in the washerwhen the guide-bar is extended ina vertical direction. A thumbnut l12 is threaded on theouter end of the stud 9 and is designed to hold the guide-bar locked in either vertical or -horizontal position.` At the .top rear edge ofthe drag is rigidly, fixed extending hinge members 13,

`fashioned in the shape of upwardly-extending hooks. These coperate with hinge members 14, secured to the lower edge ofa partition 15, forming a pattern-board for the flask. As shown in Fig. 2, the hinge members 14 are substantially spool-shaped and may be vertically lifted out of the hinge members 13 or rotated vtherein,'as desired. To the opposite face of thepattern-boa'rd 15 hooked hinge members 13a, in alinement with the hinge members 13 and of the same construction, are secured.

16 indicates` brackets iixed to the ends of the pattern-board alining with the guidebars 10 when the latter are in vertical position and having adjustable'sockets 17 fitting in grooves in the brackets and held in adjusted position by the bolts-shown. A plate 18, fixed to the lower face of the patternboard, has fixed to it, preferably as an integral part thereof, a pin 19,- which when the patternboard and' drag are assembled passes through an apertured plate 20, secured to the drag. An apertured'plateQOa, ,secured to the top face of the pattern-board in alinement with the plate 20, is of the same construction and performs a like functionfor a cope 21 when in register with the top face of the patternboard. The cope/21 is of the same construction as the drag 1, differing only in the particulars hereinafternoted.

The cope is constructed of va rectangular IOO able corner-plates ZYa beingallso provided.

Attached to each end of the cope in alinement with the guide-bars 1,0 are brackets 16a and adjustable sockets 17'a of the same 'construction as the brackets and sockets of the pattern-board and cooperate with the upper ends of the guide-bars in holding the parts when assembled in exact register.

hinge members 14.

Also secured to the boti tom edge of the cope at that side opposite from the hinges is a plate 18, having iiXed to tern-board are in register. p tion of the fastenings between the dragand pattern-board and between the pattern-board and cope it is seen that the pattern-board can be removed and the cope and drag directly assembled and secured together in the samel manner as are the pattern-board and drag.

used as an ordinary iiask consisting only of a cope and drag. I

As shown, the cope is preferably made slightly deeper than'the drag and is provided board be dispensed with, the guide-barsl() are set vertically, adapting the-flask to be used as an ordinary snapflask.

Although I have particularly described .the invention in detail, itis tobe understood that i the scope thereof is limited by the annexed it a pin 19a, adapted to pass through the aper- 5 ture in the plate V20a when the cope and pat- By the construewith a series of inclined grooves 22 on its inner walls to prevent the sand from dropping i out when moving the cope from place to The use of the improved Hask in conplace.

nection with the pattern-board will be found of special advantage 1n casting name-plates or other artlcles having projection of no considerable length. For making such a casting a pattern of the plate or other article is secured to that side of the pattern-board forming the bottom of the drag. Sand is thenV packed in the drag in the usual manner. The flask is then inverted and the cope packed with sand, after which the pattern-board having the pattern fixed thereon is removed and the cope and drag brought directly together, providing a mold ready for the cast- ,l

ing operation.

Ordinarily when the pattern-board is in use the guide-bars l0 are turned to a horizontal and inoperative position, the members of the'flask being separated from each other by Arevolving them aboutI their hinged j' connection. Should, however, the patternclaims only.

Having thus described my invention, I claim as new and desire to secure by Letters Patent l. A molders flask comprising a cope and a drag hingedly connected atvtheir corners w'hereby they may be laterally opened, guidebars pivotally attached to the ends of the drag adaptedl to be locked in horizontal This construction admits of the flask being l used in connection with the pattern-board or i and vertical positions, adjustable sockets carried by the cope coperating with the guidebars, and hinge members secured to both the cope and drag adapting them to be vertically separated.

2. A molders fiask consisting of a cope made up of two members hingedly connected together, a clamp for holding the members ofthe cope from separation, a drag consisting of two members hinged together, a blamp for hold-ing the members of the drag from separation, guide-bars for maintaining the cope and drag in register, and means whereby the guide-bars may be turned to operative and inoperative position.

3. In a molders flask, a cope, a drag, guide-bars pivotally attached to the drag, means for locking the guide-bars in horizontal and vertical positions, brackets carried by the cope cooperating with the guide-bars,

and adjustable sockets carried by the brackets for the purpose described.

In testimony whereof I have signedmy n ame to this specification in the presence oi" two subscribing witnesses.

GUY H. RAYBURN.

litnesses JOSEPH CRATTY, S. R. HEWITT. 

